Erect, much-branched; branches slender, at first pilose, leaf-scars prominent; leaves opposite, subulate, 3 lin. long, 1/4 lin. wide, acute, tipped by a tuft of hairs; flowers in the axils of the upper leaves; bracteoles 2 lin. long, oblong, ciliate and with a terminal tuft of hairs; calyx-tube glabrous, 7 lin. long, slender; lobes 1.5 lin. long, 0.3 lin. wide, oblong, acute, with a terminal tuft of hairs; petals 8, oblong, 1/2 lin. long, surrounded by hairs of about equal length; anthers with acute connective; ovary oblong, glabrous; style filiform; stigma small.